2021 GW4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3035705632 ± 2.00e+00
Semi-major axis (a)1.4026769345 AU ± 3.00e+00
Inclination (i)5.07157517° ± 4.00e+00
Long. of Asc. Node (Ω)22.56395270° ± 5.00e+00
Arg. of Perihelion (ω)206.96203455° ± 6.00e+00
Mean Anomaly (M)264.85030259° ± 5.26e-03
Mean Motion (n)0.5932911400°/day ± 1.90e+00
Perihelion dist (q)0.97686430 AU ± 3.50e+00
Aphelion dist (Q)1.82848830 AU ± 4.81e+00
Orbital Period1.66125460 yr ± 5.33e+00
Physical Parameters
H (abs. magnitude)29.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.247″
Uncertainty1
Orbit TypeApollo
MOID0.000315 AU
Observations Used37
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-04-12
Observations (40)
Date Type RA Dec Mag Band Observatory
2021-04-08 05:32:30 C 10 32 44.62 +05 40 55.2 V G96
2021-04-08 05:39:56 C 10 32 43.67 +05 40 57.6 V G96
2021-04-08 05:47:21 C 10 32 42.73 +05 41 00.8 V G96
2021-04-08 05:54:46 C 10 32 41.81 +05 41 03.7 V G96
2021-04-08 07:48:19 C 10 32 29.04 +05 41 38.8 V I52
2021-04-08 07:54:22 C 10 32 28.48 +05 41 41.4 V I52
2021-04-08 08:00:25 C 10 32 27.97 +05 41 42.8 V I52
2021-04-09 04:42:02 C 10 33 09.30 +05 53 02.5 V G96
2021-04-09 04:51:41 C 10 33 07.69 +05 53 09.1 V G96
2021-04-09 05:01:58 C 10 33 06.09 +05 53 15.5 V G96
2021-04-09 05:12:15 C 10 33 04.41 +05 53 22.3 V G96
2021-04-09 07:25:38 C 10 33 16.194 +05 57 14.50 U F51
2021-04-09 07:44:26 C 10 33 12.796 +05 57 28.66 U F51
2021-04-09 08:03:12 C 10 33 09.372 +05 57 42.48 U F51
2021-04-09 08:22:03 C 10 33 05.917 +05 57 55.97 U F51
2021-04-10 07:10:23 C 10 33 22.49 +06 18 32.0 o 691
2021-04-10 07:17:18 C 10 33 21.32 +06 18 40.0 o 691
2021-04-10 07:24:15 C 10 33 20.15 +06 18 48.4 o 691
2021-04-11 02:59:22 C 10 36 14.45 +07 02 46.8 o 691
2021-04-11 03:02:38 C 10 36 13.72 +07 02 59.3 o 691
2021-04-11 03:05:54 C 10 36 12.96 +07 03 11.8 o 691
2021-04-11 20:03:47 C 10 40 41.40 +08 45 08.9 V J69
2021-04-11 20:11:42 C 10 40 41.23 +08 46 53.2 V J69
2021-04-11 20:19:37 C 10 40 41.02 +08 48 39.0 V J69
2021-04-11 20:47:04 C 10 40 45.21 +08 56 47.1 V Z43
2021-04-11 20:56:12 C 10 40 44.56 +08 58 58.1 V Z43
2021-04-11 20:58:16 C 10 40 37.50 +08 57 07.3 V Z80
2021-04-11 21:05:06 C 10 40 43.84 +09 01 07.3 V Z43
2021-04-11 21:14:04 C 10 40 43.09 +09 03 19.1 V Z43
2021-04-11 21:36:44 C 10 40 38.43 +09 06 36.9 V J95
2021-04-11 21:38:40 C 10 40 38.33 +09 07 06.4 V J95
2021-04-11 21:40:40 C 10 40 38.22 +09 07 36.9 V J95
2021-04-11 21:42:38 C 10 40 38.11 +09 08 07.3 V J95
2021-04-11 23:28:38 C 10 40 33.57 +09 37 46.7 V Z80
2021-04-11 23:35:19 C 10 40 33.92 +09 39 51.2 V Z80
2021-04-11 23:42:33 C 10 40 34.44 +09 42 07.7 V Z80
2021-04-12 00:03:29 C 10 40 38.91 +09 49 04.7 V J95
2021-04-12 00:06:42 C 10 40 39.30 +09 50 09.2 V J95
2021-04-12 00:08:19 C 10 40 39.52 +09 50 41.4 V J95
2021-04-12 00:48:04 C 10 40 46.93 +10 04 37.2 V J95